diff --git a/designer_base/src/com/fr/design/dialog/BasicScrollPane.java b/designer_base/src/com/fr/design/dialog/BasicScrollPane.java
index 7ff1bab92..d4fabca8b 100644
--- a/designer_base/src/com/fr/design/dialog/BasicScrollPane.java
+++ b/designer_base/src/com/fr/design/dialog/BasicScrollPane.java
@@ -153,8 +153,9 @@ public abstract class BasicScrollPane<T> extends BasicBeanPane<T>{
 				scrollBar.setEnabled(false);
 				scrollBar.setVisible(false);
 			} else {
-				scrollBar.setEnabled(true);
-				scrollBar.setVisible(true);
+                boolean show = isShowScrollBar();
+				scrollBar.setEnabled(show);
+				scrollBar.setVisible(show);
 			}
 			maxheight = getHeight() - DET_HEIGHT;
 			if ((MAXVALUE - scrollBar.getVisibleAmount()) == 0) {
@@ -179,7 +180,11 @@ public abstract class BasicScrollPane<T> extends BasicBeanPane<T>{
 			}
 			leftcontentPane.validate();
 		}
-	}
+    }
+
+    protected boolean isShowScrollBar() {
+        return true;
+    }
 
 	@Override
 	public T updateBean() {
diff --git a/designer_chart/src/com/fr/design/chart/fun/impl/AbstractIndependentChartUIWithAPILevel.java b/designer_chart/src/com/fr/design/chart/fun/impl/AbstractIndependentChartUIWithAPILevel.java
index b1361b21f..ffe91cd0d 100644
--- a/designer_chart/src/com/fr/design/chart/fun/impl/AbstractIndependentChartUIWithAPILevel.java
+++ b/designer_chart/src/com/fr/design/chart/fun/impl/AbstractIndependentChartUIWithAPILevel.java
@@ -15,9 +15,13 @@ import com.fr.general.ComparatorUtils;
  * Created by Mitisky on 16/3/7.
  */
 public abstract class AbstractIndependentChartUIWithAPILevel implements IndependentChartUIProvider {
+    private static final int OLD_PLUGIN_LEVEL = -2;
+
     @Override
+    //以前的插件没有覆写这个方法,所以始终获取到-2,比当前level低,提示更新.
+    //新的插件编译进去的是当前LEVEL,当之后LEVEL增加,会比编译进去的LEVEL大,提示更新.
     public int currentAPILevel() {
-        return CURRENT_API_LEVEL;
+        return OLD_PLUGIN_LEVEL;
     }
 
     public AbstractChartAttrPane[] getAttrPaneArray(AttributeChangeListener listener){